GPvecchia               GPvecchia: fast, scalable Gaussian process
                        approximations
MaternFun               Calculate Matern covariance function
SelInv                  selected inverse of a sparse matrix
V2covmat                compute covariance matrix from V.ord Do not run
                        this function for large n or n.p!!!
calculate_posterior_VL
                        Vecchia Laplace extension of GPVecchia for
                        non-Gaussian data
createL                 create the sparse triangular L matrix for
                        specific parameters
createU                 create the sparse triangular U matrix for
                        specific parameters
getMatCov               extract the required elements from the
                        covariance matrix
getMatCovFromFactorCpp
                        Calculate the covariance values required by HV
                        for matrix factors passed as sparse matrices
ic0                     Incomplete Cholesky decomposition of a sparse
                        matrix passed in the compressed sparse row
                        format
ichol                   Wrapper for incomplete Cholesky decomposition
order_coordinate        Sorted coordinate ordering
order_dist_to_point     Distance to specified point ordering
order_maxmin_exact      Maximum minimum distance ordering
order_maxmin_exact_obs_pred
                        Maximum minimum distance ordering for
                        prediction
order_middleout         Middle-out ordering
order_outsidein         Outside-in ordering
vecchia_estimate        estimate mean and covariance parameters of a
                        Matern covariance function using Vecchia
vecchia_laplace_likelihood
                        Wrapper for VL version of vecchia_likelihood
vecchia_laplace_likelihood_from_posterior
                        Wrapper for VL version of vecchia_likelihood
vecchia_laplace_prediction
                        Wrapper for VL version of vecchia_prediction
vecchia_likelihood      evaluation of the likelihood
vecchia_lincomb         linear combination of predictions compute the
                        distribution of a linear combination Hy
vecchia_pred            make spatial predictions using Vecchia based on
                        estimated parameters
vecchia_prediction      Vecchia prediction
vecchia_specify         specify a general vecchia approximation
